CVE-2026-87875
The cupsUTF32ToUTF8() function in CUPS's cups/transcode.c lacks a source-length bound and can read past the end of the source buffer, resulting in a heap out-of-bounds read. This is reachable via SNMP supply-description parsing in backend/snmp-supplies.c with attacker-controlled content.
- Published Sep 9, 2026
- CVSS 4.3 medium
- 0.4% chance of exploitation in the next 30 days (EPSS)
- A fix is available